Grey Domestic Waste
Water Treatment - Go Green
Gray water - Bath
and kitchen water recycle
Collect Aerate, Ozonate, re use:
Harvest and recycle household domestic kitchen and
bathroom waste water for reuse.
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Commercial & Industrial wastewater equipment:
ECO-TEC is backed by the experience
and expertise gained from over 10 years of ozone treatment system design
Our equipment can be used in full
scale waste water treatment systems for water recovery in fish hatcheries
and farms, domestic, municipal and commercial sewer systems, liquid waste
from food processing, and industrial toxic waste. In these applications
ozonation systems provide wide range of support. From assisting in
flocculation, foam fractionation, bio-filtration to direct oxidation where
ozone acts directly or in conjunction with other oxidation to form
Hydroxyl radicals. Results required may be anywhere from just a reduction
of biological waste, to a complete purification and sanitation as required
by the drinking water quality standards. Such "safe to drink" water is
often used for irrigation in farming and parks, in secondary plumbing
systems and for complete recycling in an industrial process or a farm.
This technology offers
"gold mine" opportunities in Africa where water is extremely scarce.
Instead of facing problems of how and where to discharge the wastewater,
millions of m3 of water can turn large arid areas into a green paradise.
The sludge is also disinfected, and in most cases suitable as a natural
While ozone is the superior and most
natural agent for sanitation and water purification, it is not a miracle
cure. For best economy, ozone is applied in conjunction with a whole chain
of other clean and environmentally friendly techniques.
Rotating screens for flows from 18
m3/hr. to 460 m3/hr. (= 80 GPM to 2,025 GPM) with screens 15 microns to
100 microns. About 1% of the main flow is charged with ozone for continued
backwash. The water for backwash does not require any chemicals, and it
does not have to be heated.
DAF cells are suitable for aeration of
wastewater with very high organic content. In this process ozone oxidizes
the surface of tiny organic particles, creating tiny bubbles of carbon
dioxide. Nitrogen gas from air provides further lift to the particles.
Skimmers remove resulting foam.
Foam fractionators work in a similar
way as DAF cells, except they do not need mechanical skimmers. The foam
overflows to a special compartment where it is removed by a high-pressure
mist. Ozone is injected into the incoming water line.
Bio-filters need ozone treated water
without pathogens, otherwise the pathogens may decimate the aerobic
colonies of water cleaning bacteria.
The effluent water from bio-filtration
is further purified with ozone for final purification and sanitation.
In more elaborate industrial waste
water treatment systems ozone is applied in a pH-LOW tank followed by
filtration, pH-HIGH treatment with ozone followed by filtration, further
followed by a high ozone level treatment assisted with hydrogen peroxide.
Ozone also helps in oil separation and
Aerobic and anaerobic digesters are
suitable for pre-treatment, to be followed by OZONATION.
OZONATION of large lagoons provide a
much more efficient bio-treatment, and usually includes a final
disinfection with ozone.
In most cases, not all
of the techniques above need to be implemented at the same time.
For the right selection of proper technologies, many aspects must be
evaluated, such as:
waste water content based on
laboratory test results
space available, and cost of the space
target water quality [anywhere between
just some reduction of BOD (Biological Oxygen Demand), to the bottled
water quality standards].
penalties for discharge of water with
BOD above allowable limits.
cost of water and estimated value of
ECO-TEC provides a wastewater
treatment solution that meets all requirements in the most economical and
ecologically friendly way.